What material is typically used for gas piping in protected areas?

In gas piping systems, black iron is typically used for protected areas because it is durable and resistant to the pressures associated with gas transport. Black iron pipe has a strong mechanical structure, making it suitable for gas applications where safety and reliability are paramount.

This type of pipe is typically treated with a protective coating to prevent corrosion, which can be a significant concern in various environmental conditions. Its compatibility with gas fittings and joints further adds to its utility in plumbing systems. In contrast, other materials might not offer the same level of safety, durability, or appropriate handling for gas applications, making black iron the preferred choice for professionals in the field.